On the analysis of singular stress fields Part 1: finite element formulation and application to notches

被引：12
|
作者：
Tur, M
Fuenmayor, J
Mugadu, A
Hills, DA
机构：
[1] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England
[2] Univ Politecn Valencia, Dept Ingn Mecan & Mat, E-46071 Valencia, Spain
来源：
JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN | 2002年 / 37卷 / 05期
关键词：
singular stress fields; finite element; notch root;
D O I：
10.1243/030932402760203892
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The state of stress at the apex of a notch is characterized by a unique singular spatial distribution. The use of a special finite element to enable this stress state to be represented in a genreal model is discussed and details of the implementation are provided. Separately, an analytical description of the stress state is found from Williams' asymptotics and the generalized stress intensity factor for the configuration is found. This enables the region of domination of the singular term to be found and hence the domain within which any notch root singular process zone is controlled by the singular field to be quantified.
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页码：437 / 444
页数：8
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